A recent while ago a person asked why their were so few religious persons in Philosophy departments these days. One philosopher responded that there were many opportunities for abstract thinking in the religion department of universities. Most religion departments are centered around particular religions such as Christianity while historically philosophers have often been spiritual but not affiliated with a religion. So I guess you could still ask why are so few philosophers spiritual in orientation and what educational department could they possibly turn to?
Read another response by Charles Taliaferro